Re: [PATCH v9 2/7] tools: arm64: Update sysreg.h header files

From: James Clark
Date: Mon Jan 13 2025 - 10:44:07 EST




On 13/01/2025 3:28 pm, Marc Zyngier wrote:
On Mon, 13 Jan 2025 15:07:21 +0000,
Mark Brown <broonie@xxxxxxxxxx> wrote:

[1 <text/plain; us-ascii (quoted-printable)>]
On Mon, Jan 06, 2025 at 02:24:37PM +0000, James Clark wrote:
From: James Clark <james.clark@xxxxxxx>

Created with the following:

cp include/linux/kasan-tags.h tools/include/linux/
cp arch/arm64/include/asm/sysreg.h tools/arch/arm64/include/asm/

Update the tools copy of sysreg.h so that the next commit to add a new
register doesn't have unrelated changes in it. Because the new version
of sysreg.h includes kasan-tags.h, that file also now needs to be copied
into tools.

This breaks the build of the KVM selftests:

aarch64/aarch32_id_regs.c:150:16: error: use of undeclared identifier 'ID_AA64PFR0_EL1_ELx_64BIT_ONLY'
150 | return el0 == ID_AA64PFR0_EL1_ELx_64BIT_ONLY;
| ^
1 warning and 1 error generated.

since it's pulled over the changes in 056600ff7330 ("arm64/cpufeature:
Replace custom macros with fields from ID_AA64PFR0_EL1") but not updated
the test to reflect this.

Thanks for the heads up. I've stashed a fix on top, which hopefully
will be in next tomorrow.

M.


Oops sorry about that. I only tested the Perf build and hadn't done the self tests for a few versions.

Thanks for making the fix.